I like the game, but it would be cool if you could make Teams your own. There are a lot of Jerseys, but still the Teams look very much alike.
It would be nice if you could distinguish Veteran Players from rookies. Like it used to be in BB1

Also adding custom Team logos would be very cool. It would help for lore-focused leagues a lot

All this has been asked hundred thousand times. It s not their priority at the moment . They are focusing on league management, new races and bug correction. It may eventually be consider but do not hold your breath

Except that the core of the players want more races and more leagues flexibility and Cyanide priritise its ressources to maintain and keep his core base happy. You will have to wait till Legendary is over before getting your hopes up again